Port 2027b0be

Original commit message:

    The new operators are implemented similar to the Float64(Max|Min) which
    already exist. The purpose of the new operators is the implementation
    of the F32Max and F32Min instructions in WebAssembly.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2263383002
Cr-Commit-Position: refs/heads/master@{#38803}